Which of the following marks indicates an outstanding proficiency level?

The mark that indicates an outstanding proficiency level is one that falls within the range of 4.9 to 5.0. This range clearly designates the highest levels of achievement, reflecting exceptional performance and mastery of the skills or competencies being evaluated. In many proficiency assessments, scores at this level suggest not only a deep understanding but also the ability to apply knowledge effectively in practical scenarios, demonstrating superior capability.

In contrast, the other specified ranges indicate varying levels of proficiency that do not reach the top tier. The ranges below 4.9 reflect either satisfactory or competent performance, which, while commendable, do not signify the outstanding level of excellence that is captured in the 4.9 to 5.0 mark. Therefore, to denote outstanding proficiency, the highest possible score range is essential, making it clear that 4.9 to 5.0 is where such exceptional achievement is recognized.